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rocksdb/tools/manifest_dump.cc

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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "db/version_set.h"
#include <algorithm>
#include <stdio.h>
#include "db/filename.h"
#include "db/log_reader.h"
#include "db/log_writer.h"
#include "db/memtable.h"
#include "db/table_cache.h"
#include "leveldb/env.h"
#include "leveldb/table_builder.h"
#include "table/merger.h"
#include "table/two_level_iterator.h"
#include "util/coding.h"
#include "util/logging.h"
static int verbose = 0;
using namespace leveldb;
//
// Takes a manifest file and dumps out all metedata
//
int main(int argc, char** argv) {
// parse command line options
size_t n;
char junk;
int foundfile = 0;
std::string manifestfile;
for (int i = 1; i < argc; i++) {
std::string param(argv[i]);
if ((n = param.find("--file=")) != std::string::npos) {
manifestfile = param.substr(strlen("--file="));
foundfile = 1;
} else if (sscanf(argv[i], "--verbose=%ld%c", &n, &junk) == 1 &&
(n == 0 || n == 1)) {
verbose = n;
}
}
if (!foundfile) {
fprintf(stderr, "%s [--verbose=0|1] [--file=pathname of manifest file\n",
argv[0]);
abort();
}
if (verbose) {
printf("Processing Manifest file %s\n", manifestfile.c_str());
}
Options options;
std::string file(manifestfile);
std::string dbname("dummy");
TableCache* tc = new TableCache(dbname, &options, 10);
const InternalKeyComparator* cmp = new InternalKeyComparator(options.comparator);
VersionSet* versions = new VersionSet(dbname, &options,
tc, cmp);
Status s = versions->DumpManifest(options, file, verbose);
if (!s.ok()) {
printf("Error in processing file %s %s\n", manifestfile.c_str(),
s.ToString().c_str());
}
if (verbose) {
printf("Processing Manifest file %s done\n", manifestfile.c_str());
}
}